Vaporizer for gas-engines



D. MYERS.

VAPOMZE R FOR GAS ENGINES. APPLICATION FILED APR. 29. 1919.

1,363,190. I Patented Dec; 21, 1920.

2 SHEETS-SHEET I- D. MYERS.

VAPORIZER FOR GAS ENGINES.

APPLICATION FILED APR- 29. I919.

Patented Dec. 21, 1920.

2 SHEETS-SHE 2.

UNlTED STATLES LAKE CITY, UTAH, ASSIGNOR OF ONE-HALF TO AItTHUR DIME MYERS, 0F SALT IBETZ, OF SALT LAKE CITY, UTAH.

VAPORIZEB FOR GAS-ENGINES.

Specification of Letters Patent.

Patented Dec. 21 1920.

Application filed April 29, 1819. Serial No. 293,413.

To all whom it may concern:

Be it known that I, DIME Mrnns, a citizen of the United States, residing at Salt Lake City, in the county of Salt Lake and State of Utah, have invented certain new and useful Improvements in Vaporizers for Gas-Engines, of-which the following is a full, clear, and exact specification.

This invention relates to gas engines, and has for its object to provide for the more complete vaporization of the fuel as it passes from the carbureter to the cylinders, thereby materially increasing the mileage per gallon of fuel and eliminating to a great extent the formation of carbon in the cylinders, as well as increasing the power developed by the engine.

Another object is to provide a vaporizer of this kind which is very simple in con struction, inexpensive to manufacture, and which is entirely automatic in its operation, requiring no adjustment or control from the dash or other part of the car.

It is also the aim of the invention to produce a manifold combining intake and exhaust passages and adapted to incorporate the vaporizer therein and to be readily attached to Ford or other engines havin the intake and exhaust manifolds arranged on the same side.

A further object is to inclose the portion of the intake manifold passage which leads to the carbureter and also the portions of both intake and exhaust manifolds adjacent the engine so as to exclude cold air and retain the heat generated by the exhaust gases for aiding in the vaporization of the fresh fuel passing to the cylinders. Other objects will appear as the description proceeds.

The invention will be first hereinafter de-, scribed in connection with the accompanying drawings, which constitute part of this specification, and then more specifically defined in the claims at the end of the description.

In the accompanying drawings, wherein similar reference characters are used to des ignate corresponding parts throughout the several views Figure 1 is a broken side elevation of a combined intake and exhaust manifold constructed substantially in accordance with this invention, looking at it from the engine side.

Fig. 2 is a broken plan view of the manifold as shown in F ig. 1.

Fig. 3 is a section on the line 33 of Fig. l, drawn to a larger scale, and showing part of the engine, and

F 1g. 4 is a section on the line 4 -4 of Fig. 1, drawn to the same scale as Fig. 3.

The exhaust manifold or pipe 5 and the intake manifold of the usual T-shape type 6 are formed in an integral casting having a web or apron portion 7 connecting them on the side away from the engine and extending for some distance below the head of the T-shaped intake manifold. This apron or skirt portion preferably conforms to the outwardly turned stem portion of the T-shaped intake manifold and extends substantially the full length of the exhaust manifold and across the space between the front end of said exhaust manifold and the adjacent side of the engine 9 which is indicated in broken lines in Fig. 3, thus excluding cold air from entering between the manifolds and the engine and retaining the heat between said manifolds and engine where it is useful for maintaining the fuel in completely vaporized form as it passes through the intake mani fold to the cylinders. I

The exhaust manifold has a plurality of ports 10 to communicate with the several cylinders, as usual, and the intake manifold has the ports 11 leading to said cylinders,

said ports 10 and 11 as shown being arranged in horizontal alinement. The combined exhaust and intake manifold with its skirt 7 may be bodily attached to an engine by means of stud bolts passed through openings 12 provided in the casting between the ports 10 and 11, one of said bolts being shown at 18 in Fig. 3. The front end portion of the skirt 7 is designated ll in Figs. 1, 2 and 3.

To insure complete vaporization of the fuel as it passes from the carbureter, which is designed to be attached to the lower end 15 of the intake manifold in the usual manner, to the cylinders, a pipe or conduit 16 is run from the exhaust manifold through substantially the center of the intake manifold, as best shown in Figs. 1 and 3. This pipe 16 serves as a by-pass for conducting some of the hot exhaust gases from the exhaust manifold directly through the interior of the intake manifold, thus providing an automatic vaporizer which elfectively reduces any parthe working of the engine by reducing its power, but would also be lost and, more than that, would form carbon in the cylinders and make it necessary for them to be cleaned out periodically. With the simple addition of the bypass pipe 16, as illustrated, the incompletely vaporized fuel which has heretofore been wasted is saved and causes a considerable increase in mileage per gallon,

greatly increases the power of the engine, and practically eliminates carbon from the cylinders. The portion of the by-pass pipe 16 which extends between the exhaust manifold 5 and intake manifold 6, as shown in Figs. 1 and 3, is incased in a tubular portion 5 of the casting which prevents any appreciable drop in the temperature of the exhaust gases in transit from said exhaust manifold to the interior of the intake manifold where it is desirable to have them delivered at the highest temperature in order to efiect the'most complete vaporization of the mixture passing from the carbureter to the cylinders.

In operation, a portion of the exhaust gases will pass through the pipe 16 without it being necessary to provide any controlling or adjusting means. In other words, the operation of the vaporizer is automatic and sure whenever the engine is running. Inasmuch as said pipe extends substantially throughout the length of the intake manitold from its top or head to the bottom of its stem adjacent the carbureter connection, there is ample opportunity for complete vaporization to be effected as the fuel passes through said intake manifold and around said considerable extent of by-pass exhaust pipe. 7 To the lower end of the pipe 16 which protrudes from the lower end of the intake- -manifold another pipe 17 may be connected,

as bythe union 18, for conducting the exhaust gases which have passed through the manifold to any suitable point of discharge, as may be desired. For instance, said exhaustgases might be discharged through the bottom of the pan (not shown) or they may be caused to pass through the mufiler in the main exhaust pipe. If not passed through the main muffler, a separate mufiler may be provided, if required. I

Havingthus described my invention, what I claim as new anddesire to secure by Letters Patent 1 the United States is 1. As a new article of manufacture, a combined intake and exhaust manifold for gas engines, comprising a one-piece casting having an integral imperforate web connecting the intake and exhaust passages on the side from the engine, there being a space between said passages on the side next to the engine, and an integral skirt portion extending downward from the side of the exhaust passage away from the engine a considerable distance below the horizontal portion of the intake passage and across the front end of the space between said passages and the engine. I v

2. The combination with a combined in take and exhaust manifold for gas engines comprising one-piece casting having an integral imperforate web connecting the intake and exhaust passages on the side away from the engine, a space between said passages 011 the side next to the engine, and a tubular portion extending between said passages through said space and mergingv at one side into said web, of an exhaust by-pass pipe leading from the exhaust passage through said tubular portion and intake passave for more completely vaporizing the mixture'as it passes through said intake passage, 7

In testimony whereof I have signed my name to this specification.

. DIMP MYERS 

